Finding the Fourth Proportional to 135,342,000.28, 186,767,127.16 and 76,603,403.92
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Solution
The fourth proportional to 135,342,000.28, 186,767,127.16 and 76,603,403.92 is: 105,709,961.81
Step by Step Solution
- Step 1: Write the proportion equation
135,342,000.28 : 186,767,127.16 = 76,603,403.92 : x - Step 2: Convert to fraction form
135,342,000.28/186,767,127.16 = 76,603,403.92/x - Step 3: Cross multiply
135,342,000.28x = 186,767,127.16 × 76,603,403.92 - Step 4: Simplify right side
135,342,000.28x = 14,306,997,680,815,482 - Step 5: Solve for x
x = 14,306,997,680,815,482/135,342,000.28 - Step 6: Final answer
x = 105,709,961.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.